forked from pool/glibc
Andreas Schwab
f066d6282a
* The <stdbit.h> header type-generic macros have been changed when using
GCC 14.1 or later to use __builtin_stdc_bit_ceil etc. built-in functions
* The GNU C Library now supports a feature test macro _ISOC23_SOURCE to
enable features from the ISO C23 standard
* The ISO C23 function families introduced in TS
18661-4:2015 are now supported in <math.h>
* A new tunable, glibc.rtld.enable_secure, can be used to run a program
as if it were a setuid process
* On Linux, the epoll header was updated to include epoll ioctl definitions
and the related structure added in Linux kernel 6.9
* The fortify functionality has been significantly enhanced for building
programs with clang against the GNU C Library
* Many functions have been added to the vector library for aarch64
* On x86, memset can now use non-temporal stores to improve the performance
of large writes
* Architectures which use a 32-bit seconds-since-epoch field in struct
lastlog, struct utmp, struct utmpx (such as i386, powerpc64le, rv32,
rv64, x86-64) switched from a signed to an unsigned type for that
field
* __rseq_size now denotes the size of the active rseq area (20 bytes
initially), not the size of struct rseq (32 bytes initially).
- arm-dl-start-user.patch, duplocale-global-locale.patch,
elf-parse-tunables.patch,
glibc-CVE-2024-33599-nscd-Stack-based-buffer-overflow-in-n.patch,
glibc-CVE-2024-33600-nscd-Avoid-null-pointer-crashes-after.patch,
glibc-CVE-2024-33600-nscd-Do-not-send-missing-not-found-re.patch,
glibc-CVE-2024-33601-CVE-2024-33602-nscd-netgroup-Use-two.patch,
iconv-iso-2022-cn-ext.patch, nscd-netgroup-cache-timeout.patch,
s390-clone-error-clobber-r7.patch, sigisemptyset.patch,
OBS-URL: https://build.opensuse.org/package/show/Base:System/glibc?expand=0&rev=719
60 lines
2.0 KiB
Diff
60 lines
2.0 KiB
Diff
From 5a508e0b508c8ad53bd0d2fb48fd71b242626341 Mon Sep 17 00:00:00 2001
|
|
From: Florian Weimer <fweimer@redhat.com>
|
|
Date: Thu, 25 Apr 2024 15:01:07 +0200
|
|
Subject: [PATCH] CVE-2024-33600: nscd: Do not send missing not-found response
|
|
in addgetnetgrentX (bug 31678)
|
|
|
|
If we failed to add a not-found response to the cache, the dataset
|
|
point can be null, resulting in a null pointer dereference.
|
|
|
|
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
|
|
(cherry picked from commit 7835b00dbce53c3c87bbbb1754a95fb5e58187aa)
|
|
---
|
|
nscd/netgroupcache.c | 14 ++++++--------
|
|
1 file changed, 6 insertions(+), 8 deletions(-)
|
|
|
|
diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
|
|
index f227dc7fa2..c18fe111f3 100644
|
|
--- a/nscd/netgroupcache.c
|
|
+++ b/nscd/netgroupcache.c
|
|
@@ -147,7 +147,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
|
|
/* No such service. */
|
|
cacheable = do_notfound (db, fd, req, key, &dataset, &total, &timeout,
|
|
&key_copy);
|
|
- goto writeout;
|
|
+ goto maybe_cache_add;
|
|
}
|
|
|
|
memset (&data, '\0', sizeof (data));
|
|
@@ -348,7 +348,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
|
|
{
|
|
cacheable = do_notfound (db, fd, req, key, &dataset, &total, &timeout,
|
|
&key_copy);
|
|
- goto writeout;
|
|
+ goto maybe_cache_add;
|
|
}
|
|
|
|
total = buffilled;
|
|
@@ -410,14 +410,12 @@ addgetnetgrentX (struct database_dyn *db, int fd, request_header *req,
|
|
}
|
|
|
|
if (he == NULL && fd != -1)
|
|
- {
|
|
- /* We write the dataset before inserting it to the database
|
|
- since while inserting this thread might block and so would
|
|
- unnecessarily let the receiver wait. */
|
|
- writeout:
|
|
+ /* We write the dataset before inserting it to the database since
|
|
+ while inserting this thread might block and so would
|
|
+ unnecessarily let the receiver wait. */
|
|
writeall (fd, &dataset->resp, dataset->head.recsize);
|
|
- }
|
|
|
|
+ maybe_cache_add:
|
|
if (cacheable)
|
|
{
|
|
/* If necessary, we also propagate the data to disk. */
|
|
--
|
|
2.45.0
|
|
|